Improvement in coal-oil burners



UNITED STATES M. B. DYOTT, OF PHILADELPHIA, PENNSYLVANIA.

IMPROVEMENT IN COAL-OIL BU RNERS.

Specification forming part of Letters Patent No. 37,281, dated January 6, 1863.

To @ZZ whom, it may concern.-

Beit known that I, M. B.`DYoTT, of the city and county of Philadelphia, in the State of Pennsylvania, have invented a new and useful Improvement in Coal-0il Lamps; and I do hereby declare that the following is a full, clear, and exact description of the same, ref erence being had to the accompanying drawings, making a part of this specification, in

which- Figures l and 2 are side views of a lamp with my improvement applied to it; Fig. 3, a detached sectional view of a' portion of the burner with my improvement applied to it, the improvement being also partly in section and Fig. 4, a detached perspective view of the adjustable portion of the burner, which constitutes my improvement.

Similar letters of reference indicate corresponding parts in the several gures.

The object of this invention is to obtain a coal-oil-lamp burner of simple construction which will admit of the wick being exposed for the purpose of lighting and trimming it without detaching either the cone or chimney from the burner. Burners have been previously constructed with this view, but, so far as I am aware, they have greatly augmented the cost of construction, have been liable to get out of repair, and so arranged as not to be capable of being adjusted with facility.

My invention consists in constructing the upper part of the burner, which supports the cone or 4deector, separately from the lower and main portion oi' the burner, and having the upper part provided with a number of pendent spiral supports, which are slotted nearly their whole length, and tted on pins, which pass through the upper part of the main portion of the burner, whereby the u`pper part of the burner,lwith the cone and chim-` ney, may be raised above'the lower part, so as to leave the top of the wick accessible. The advantages of this arrangement will be hereinafter fully set forth.

To enable those skilled in the art to fully understand and construct my invention, I will proceed to describe it.

A represents the lower and main portionof the burner, which is of cylindrical form, and perforated for the admission of air. The lower part of A is provided with a screw, which, as

usual, is screwed into a socket on the top of the fountain or body B of the lamp.

Gis the wick-tube, secured centrally and vertically in the part A of the burner. The wick-tube extends a short distance above the level of the'top of A, as shown in Fig. 2, and it may be cylindrical or of dat form.`

D represents the upper part of the burner, which is simply a ring having its upper edge scalloped, and provided internally with a shoulder, b, for the base of the cone or deiiector E to rest upon. (See Fig. 4:.) A screw, F, passes through the part D, to secure the chimney on the cone, the latter being retained in position on D by the chimney over the ange, at the lower end of which two of the scallops are bent, as shown at c c, Fig. 4. This arrangement for securing the chimney on the cone and securing the latter on the burner is common to almost all coal-oil lamps, and therefore, does not require a minute descrip tion. The upper part, D, ofthe burner has three pendent spiral arms or supports, G G Gr, attached to it. These arms or supports are of flat form, and are curved or bent, so that each will form a portion of the thread of a screw. (See Figs. 2, 3, and 4.) The arms or supports are slotted longitudinally nearly their Whole length, as shown at ax, and they are connected at their lower ends to a ring or band, H. The arms or supports Grand ringlor band H are so arranged that they will titand work snugly within the lower part, A, of the burner. Through the upper part of A there passes pins d, which extend through the slots a", and have washers e on their inner ends, as shown in Fig. 3. The pins d serve to connect the two parts A D of the burner together, and they also serve as guides for the arms or supports Gr.

From the above description it will be seen that by turning the ring or band H the latter may be raised above the part A of the burner, so as to expose the upper end of the wick-tube C, as shown in Fig. 2, or said ring or band may be adjusted down snugly on the top of the part A, the exterior of the ring or band having a shoulder, f, which rests on the top of A. By this arrangement the upper part, D, of the burner may be raised and lowered with the greatest facility, and the part D will be firmly sustained at all points of its movement, as the arms G form irm supports. This is an. important feature of the invention, for it is necessary to have firm supports, in consequence of' the chimney having considerable weight and exerting quite a powerful lateral strain upon the burner in case of being casually vstruck by any object, and this contingency is quite likely to occur in lighting and trimming the wick. The lower ends of the slots a* of the arms G terminate in circular recesses g, into which the pins el iit when D is elevated. These recesses g prevent the part D from casually descending. As the part D rises and falls under a screw-motion, it admits of being very readily adjusted, no difliculty being eX perienced by the sticking of the parts, as is the case with the kinds previously arranged; neither are there any parts to conduct heat down into the fountain or body of the lamp.

I do not confine myself to any particular number of arms, G, forthree or vmore may be used. Three, however, will probably' be sut'- cient.

I do not claim broadly a lamp-burner constructed ot' two parts, with the upper part so arranged as to admit of being raised and lowered; but,

Having thus described my invention, what I claim as'new, and desire to secure by Letters Patent, is-

A lamp-burner constructed of two parts, A D, connected together by slotted spiral arms Gr and pins d, arranged substantially as shown and described, to admit of the raising and low! ering of the part D, cone E, and. chimney, for` the purpose set forth.

Witnesses :I

A. I. WEIDENER, JOHN BELLERJEAU. 

